Most dust particles in your house come from dead skin.
48
Aluminum used to be more valuable than gold!
84
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Scientists aren't sure what color dinosaurs were.
312
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Liquid TIDE laundry detergent glows under a blacklight.
96
The bark of an older redwood tree is fireproof.
65